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Editiorial reviews | ||
User rating |
Polar M400 | TomTom Spark 3 Cardio | |
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Screen resolution | 128 x 128 px | 144 x 168 px |
Touchscreen | no | no |
Colour screen | no | no |
Polar M400 | TomTom Spark 3 Cardio | |
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Weight | 1.98 oz | 1.66 oz |
Polar M400 | TomTom Spark 3 Cardio | |
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Protection features | Water resistant | Water resistant |
Waterproof depth | 30 | 40 |
Polar M400 | TomTom Spark 3 Cardio | |
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Heart Rate Monitor | Built-in | Built-in |
Calorie counter | yes | yes |
Alarm | yes | yes |
Date display | yes | yes |
Display light | yes | yes |
Pedometer | yes | yes |
Sleep reading | yes | yes |
Speedometer | yes | yes |
Stopwatch | yes | yes |
Timer | yes | yes |
Polar M400 | TomTom Spark 3 Cardio | |
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Bluetooth | yes | yes |
Bluetooth version | 4.0 | 4.0 |
GPS | yes | yes |
Polar M400 | TomTom Spark 3 Cardio | |
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Battery type | Built-in | Li-polymer |
Battery life (running) | 8.0 h | 11.0 h |
Battery life (standby mode) | 24.0 day | 21.0 day |
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